155716232 has 16 divisors (see below), whose sum is σ = 333677760. Its totient is φ = 66735504.

The previous prime is 155716219. The next prime is 155716247. The reversal of 155716232 is 232617551.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1390268 + ... + 1390379.

It is an arithmetic number, because the mean of its divisors is an integer number (20854860).

Almost surely, 2^155716232 is an apocalyptic number.

It is an amenable number.

155716232 is an abundant number, since it is smaller than the sum of its proper divisors (177961528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155716232 is a wasteful number, since it uses less digits than its factorization.

155716232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780660 (or 2780656 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 155716232 is about 12478.6310146586. The cubic root of 155716232 is about 537.9946563687.

The spelling of 155716232 in words is "one hundred fifty-five million, seven hundred sixteen thousand, two hundred thirty-two".